RubyAbstractClass

This gem is going to fix the problem with Polymorphism in Ruby language. You can easily define abstract methods and abstract classes which were, unfortunately, missing in Ruby originally. Now you can define your strategy and allow subclass to implement it. Enjoy the implementation of ruby abstract class in ruby language and abstract method in ruby as well and feel free to ask any questions via issues section here in GitHub.

Installation

Add this line to your application's Gemfile:

gem 'ruby_abstract_class'

And then execute:

$ bundle install

Or install it yourself as:

$ gem install ruby_abstract_class

Usage

To make class abstract you need to include RubyAbstractClass module and specify which methods are abstract by abstract_method method. Here you go.

class A
  include RubyAbstractClass

  def foo(_params)
  end
  abstract_method :foo # a single method

  abstract_method :bar, :foobar # multiple methods

  abstract_method # just make an abstract class without any abstract methods for now
end


class B < A
  def foo
    puts 'foo'
  end

  def bar
    puts 'bar'
  end
end

B.new.foo # => foo
B.new.bar # => bar

B.new.foobar # => exception: You must implement B#foobar.

A.new # => exception: You cannot instantiate an instance of Abstract Class `A`.

Thank you :)

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake test to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/[USERNAME]/ruby_abstract_class. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the code of conduct.

License

The gem is available as open source under the terms of the MIT License.

Code of Conduct

Everyone interacting in the RubyAbstractClass project's codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.